<?php
//dezend by http://www.yunlu99.com/ QQ:270656184
defined('BASEPATH') || exit('No direct script access allowed');
class CI_DB_sqlsrv_result extends CI_DB_result
{
	/**
	 * Scrollable flag
	 *
	 * @var	mixed
	 */
	public $scrollable;

	public function __construct(&$driver_object)
	{
		parent::__construct($driver_object);
		$this->scrollable = $driver_object->scrollable;
	}

	public function num_rows()
	{
		if (!in_array($this->scrollable, array(false, SQLSRV_CURSOR_FORWARD, SQLSRV_CURSOR_DYNAMIC), true)) {
			return parent::num_rows();
		}

		return is_int($this->num_rows) ? $this->num_rows : $this->num_rows = sqlsrv_num_rows($this->result_id);
	}

	public function num_fields()
	{
		return @sqlsrv_num_fields($this->result_id);
	}

	public function list_fields()
	{
		$field_names = array();

		foreach (sqlsrv_field_metadata($this->result_id) as $offset => $field) {
			$field_names[] = $field['Name'];
		}

		return $field_names;
	}

	public function field_data()
	{
		$retval = array();

		foreach (sqlsrv_field_metadata($this->result_id) as $i => $field) {
			$retval[$i] = new stdClass();
			$retval[$i]->name = $field['Name'];
			$retval[$i]->type = $field['Type'];
			$retval[$i]->max_length = $field['Size'];
		}

		return $retval;
	}

	public function free_result()
	{
		if (is_resource($this->result_id)) {
			sqlsrv_free_stmt($this->result_id);
			$this->result_id = false;
		}
	}

	protected function _fetch_assoc()
	{
		return sqlsrv_fetch_array($this->result_id, SQLSRV_FETCH_ASSOC);
	}

	protected function _fetch_object($class_name = 'stdClass')
	{
		return sqlsrv_fetch_object($this->result_id, $class_name);
	}
}

?>
